dc.contributor.author
Zhu, W.
dc.contributor.author
Liu, Zhao
dc.contributor.author
Haldane, F. D. M.
dc.contributor.author
Sheng, D. N.
dc.date.accessioned
2018-06-08T10:37:19Z
dc.date.available
2017-03-02T13:12:58.607Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/20768
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-24067
dc.description.abstract
Multicomponent quantum Hall systems with internal degrees of freedom provide a
fertile ground for the emergence of exotic quantum liquids. Here, we
investigate the possibility of non-Abelian topological order in the half-
filled fractional quantum Hall (FQH) bilayer system driven by the tunneling
effect between two layers. By means of the state-of-the-art density-matrix
renormalization group, we unveil “fingerprint” evidence of the non-Abelian
Moore-Read Pfaffian state emerging in the intermediate-tunneling regime,
including the ground-state degeneracy on the torus geometry and the
topological entanglement spectroscopy (entanglement spectrum and topological
entanglement entropy) on the spherical geometry, respectively. Remarkably, the
phase transition from the previously identified Abelian (331) Halperin state
to the non-Abelian Moore-Read Pfaffian state is determined to be continuous,
which is signaled by the continuous evolution of the universal part of the
entanglement spectrum, and discontinuities in the excitation gap and the
derivative of the ground-state energy. Our results not only provide a “proof-
of-principle” demonstration of realizing a non-Abelian state through coupling
different degrees of freedom, but also open up a possibility in FQH bilayer
systems for detecting different chiral p−wave pairing states.
en
dc.format.extent
16 Seiten
dc.rights.uri
http://journals.aps.org/authors/transfer-of-copyright-agreement
dc.subject.ddc
500 Naturwissenschaften und Mathematik::530 Physik
dc.title
Fractional quantum Hall bilayers at half filling: Tunneling-driven non-Abelian
phase
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation
Physical Review B. - 94 (2016), 24, Artikel Nr. 245147
dc.identifier.sepid
55796
dcterms.bibliographicCitation.doi
10.1103/PhysRevB.94.245147
dcterms.bibliographicCitation.url
http://dx.doi.org/10.1103/PhysRevB.94.245147
refubium.affiliation
Physik
de
refubium.affiliation.other
Institut für Theoretische Physik
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refubium.mycore.fudocsId
FUDOCS_document_000000026526
refubium.resourceType.isindependentpub
no
refubium.mycore.derivateId
FUDOCS_derivate_000000007827
dcterms.accessRights.openaire
open access
dcterms.isPartOf.issn
2469-9950